Chicago (MDW) to Seattle (SEA), Dec 18, 2026: round trips from $326, one way from $155

Chicago (MDW) to Seattle (SEA), Dec 18, 2026: round trips from $326, one way from $155 on Axel, checked Nov 13, 2026. Lowest published fares: $326 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 18–28, 2026; $155 one way, Axel-exclusive, Southwest Airlines, nonstop, Dec 18, 2026; 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Seattle for these nights (Dec 18–19, 2026 · 1 night · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $79 a night · 4★ citizenM Seattle Pioneer Square, $89 a night · 5★ Fairmont Olympic Hotel, $283 a night
• Hotels in Seattle for these nights (Dec 18–20, 2026 · 2 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $80 a night, $160 for 2 nights · 4★ citizenM Seattle Pioneer Square, $102 a night, $203 for 2 nights · 5★ Fairmont Olympic Hotel, $285 a night, $570 for 2 nights
• Hotels in Seattle for these nights (Dec 18–21, 2026 · 3 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $79 a night, $236 for 3 nights · 4★ citizenM Seattle Pioneer Square, $104 a night, $313 for 3 nights · 5★ Fairmont Olympic Hotel, $279 a night, $837 for 3 nights
• Hotels in Seattle for these nights (Dec 18–22, 2026 · 4 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $79 a night, $314 for 4 nights · 4★ citizenM Seattle Pioneer Square, $103 a night, $411 for 4 nights · 5★ Fairmont Olympic Hotel, $283 a night, $1,133 for 4 nights
• Hotels in Seattle for these nights (Dec 18–23, 2026 · 5 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $390 for 5 nights · 4★ citizenM Seattle Pioneer Square, $102 a night, $509 for 5 nights · 5★ Fairmont Olympic Hotel, $287 a night, $1,434 for 5 nights
• Hotels in Seattle for these nights (Dec 18–24, 2026 · 6 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $468 for 6 nights · 4★ citizenM Seattle Pioneer Square, $101 a night, $607 for 6 nights · 5★ Fairmont Olympic Hotel, $286 a night, $1,716 for 6 nights
• Hotels in Seattle for these nights (Dec 18–25, 2026 · 7 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $548 for 7 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $735 for 7 nights · 5★ Fairmont Olympic Hotel, $284 a night, $1,990 for 7 nights
• Hotels in Seattle for these nights (Dec 18–26, 2026 · 8 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $627 for 8 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $840 for 8 nights · 5★ Fairmont Olympic Hotel, $293 a night, $2,347 for 8 nights
• Hotels in Seattle for these nights (Dec 18–27, 2026 · 9 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $79 a night, $707 for 9 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $945 for 9 nights · 5★ Fairmont Olympic Hotel, $292 a night, $2,630 for 9 nights
• Hotels in Seattle for these nights (Dec 18–28, 2026 · 10 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $783 for 10 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,050 for 10 nights · 5★ Fairmont Olympic Hotel, $289 a night, $2,892 for 10 nights
• Hotels in Seattle for these nights (Dec 18–29, 2026 · 11 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $859 for 11 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,155 for 11 nights · 5★ Fairmont Olympic Hotel, $289 a night, $3,175 for 11 nights
• Hotels in Seattle for these nights (Dec 18–30, 2026 · 12 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $935 for 12 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,258 for 12 nights · 5★ Fairmont Olympic Hotel, $288 a night, $3,453 for 12 nights
• Hotels in Seattle for these nights (Dec 18–31, 2026 · 13 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $1,014 for 13 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,363 for 13 nights · 5★ Fairmont Olympic Hotel, $287 a night, $3,736 for 13 nights
• Hotels in Seattle for these nights (Dec 18 – Jan 1, 2027 · 14 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $78 a night, $1,094 for 14 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,468 for 14 nights · 5★ Fairmont Olympic Hotel, $304 a night, $4,258 for 14 nights

All hotels in Seattle

Route overview: Chicago to Seattle (SEA) flight deals

2026-12-18 · one way · Axel-exclusive $155

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $175

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.

2026-12-18 → 2026-12-19 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN1451: SEA 2026-12-19 05:30:00 → MDW 2026-12-19 11:20:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-19 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL810 / DL4684: SEA 2026-12-19 23:14:00 → MDW 2026-12-20 09:46:00; 1 stop(s) via DTW; 512 minutes. Local airport times.
  • DL810: SEA 2026-12-19 23:14:00 → DTW 2026-12-20 06:29:00; layover at DTW: 161 minutes.
  • DL4684: DTW 2026-12-20 09:10:00 → MDW 2026-12-20 09:46:00.

2026-12-18 → 2026-12-20 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN1451: SEA 2026-12-20 05:30:00 → MDW 2026-12-20 11:20:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-20 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-20 08:30:00 → MDW 2026-12-20 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-20 08:30:00 → MSP 2026-12-20 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-20 15:00:00 → MDW 2026-12-20 16:39:00.

2026-12-18 → 2026-12-21 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN4975: SEA 2026-12-21 00:15:00 → MDW 2026-12-21 06:05:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-21 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-21 08:30:00 → MDW 2026-12-21 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-21 08:30:00 → MSP 2026-12-21 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-21 15:00:00 → MDW 2026-12-21 16:39:00.

2026-12-18 → 2026-12-22 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN4975: SEA 2026-12-22 00:15:00 → MDW 2026-12-22 06:05:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-22 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-22 08:30:00 → MDW 2026-12-22 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-22 08:30:00 → MSP 2026-12-22 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-22 15:00:00 → MDW 2026-12-22 16:39:00.

2026-12-18 → 2026-12-24 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN333: SEA 2026-12-24 10:45:00 → MDW 2026-12-24 16:40:00; nonstop; 235 minutes. Local airport times.

2026-12-18 → 2026-12-24 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL810 / DL4684: SEA 2026-12-24 23:14:00 → MDW 2026-12-25 09:46:00; 1 stop(s) via DTW; 512 minutes. Local airport times.
  • DL810: SEA 2026-12-24 23:14:00 → DTW 2026-12-25 06:29:00; layover at DTW: 161 minutes.
  • DL4684: DTW 2026-12-25 09:10:00 → MDW 2026-12-25 09:46:00.

2026-12-18 → 2026-12-25 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN1550: SEA 2026-12-25 06:30:00 → MDW 2026-12-25 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-18 → 2026-12-25 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL810 / DL4684: SEA 2026-12-25 23:14:00 → MDW 2026-12-26 09:46:00; 1 stop(s) via DTW; 512 minutes. Local airport times.
  • DL810: SEA 2026-12-25 23:14:00 → DTW 2026-12-26 06:29:00; layover at DTW: 161 minutes.
  • DL4684: DTW 2026-12-26 09:10:00 → MDW 2026-12-26 09:46:00.

2026-12-18 → 2026-12-26 · Axel-exclusive $334

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN4975: SEA 2026-12-26 00:15:00 → MDW 2026-12-26 06:05:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-26 · Axel-exclusive $380

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL810 / DL4684: SEA 2026-12-26 23:14:00 → MDW 2026-12-27 09:46:00; 1 stop(s) via DTW; 512 minutes. Local airport times.
  • DL810: SEA 2026-12-26 23:14:00 → DTW 2026-12-27 06:29:00; layover at DTW: 161 minutes.
  • DL4684: DTW 2026-12-27 09:10:00 → MDW 2026-12-27 09:46:00.

2026-12-18 → 2026-12-28 · Axel-exclusive $326

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN4975: SEA 2026-12-28 00:15:00 → MDW 2026-12-28 06:05:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-28 · Axel-exclusive $371

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-28 08:30:00 → MDW 2026-12-28 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-28 08:30:00 → MSP 2026-12-28 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-28 15:00:00 → MDW 2026-12-28 16:39:00.

2026-12-18 → 2026-12-29 · Axel-exclusive $326

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN4975: SEA 2026-12-29 00:15:00 → MDW 2026-12-29 06:05:00; nonstop; 230 minutes. Local airport times.

2026-12-18 → 2026-12-29 · Axel-exclusive $371

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-29 08:30:00 → MDW 2026-12-29 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-29 08:30:00 → MSP 2026-12-29 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-29 15:00:00 → MDW 2026-12-29 16:39:00.

2026-12-18 → 2026-12-30 · Axel-exclusive $326

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN333: SEA 2026-12-30 10:45:00 → MDW 2026-12-30 16:40:00; nonstop; 235 minutes. Local airport times.

2026-12-18 → 2026-12-30 · Axel-exclusive $371

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-30 08:30:00 → MDW 2026-12-30 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-30 08:30:00 → MSP 2026-12-30 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-30 15:00:00 → MDW 2026-12-30 16:39:00.

2026-12-18 → 2027-01-01 · Axel-exclusive $326

• Southwest Airlines WN3032: MDW 2026-12-18 22:30:00 → SEA 2026-12-19 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN1550: SEA 2027-01-01 06:30:00 → MDW 2027-01-01 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $371

• Delta Air Lines DL5469 / DL877: MDW 2026-12-18 10:24:00 → SEA 2026-12-18 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-18 10:24:00 → MSP 2026-12-18 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-18 14:59:00 → SEA 2026-12-18 16:53:00.
• Delta Air Lines DL810 / DL4684: SEA 2027-01-01 23:14:00 → MDW 2027-01-02 09:46:00; 1 stop(s) via DTW; 512 minutes. Local airport times.
  • DL810: SEA 2027-01-01 23:14:00 → DTW 2027-01-02 06:29:00; layover at DTW: 161 minutes.
  • DL4684: DTW 2027-01-02 09:10:00 → MDW 2027-01-02 09:46:00.

Explore this route

• All dates for this route
• Dec 17, 2026 · Return options
• Dec 19, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Chicago (MDW) to Seattle (SEA) · Dec 18, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
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